You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.8 KiB
105 lines
2.8 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
|
* Qwt Widget Library |
|
* Copyright (C) 1997 Josef Wilgen |
|
* Copyright (C) 2002 Uwe Rathmann |
|
* |
|
* This library is free software; you can redistribute it and/or |
|
* modify it under the terms of the Qwt License, Version 1.0 |
|
*****************************************************************************/ |
|
|
|
#ifndef QWT_PLOT_SCALE_ITEM_H |
|
#define QWT_PLOT_SCALE_ITEM_H |
|
|
|
#include "qwt_global.h" |
|
#include "qwt_plot_item.h" |
|
#include "qwt_scale_draw.h" |
|
|
|
#if QT_VERSION < 0x040000 |
|
class QColorGroup; |
|
#else |
|
class QPalette; |
|
#endif |
|
|
|
/*! |
|
\brief A class which draws a scale inside the plot canvas |
|
|
|
QwtPlotScaleItem can be used to draw an axis inside the plot canvas. |
|
It might by synchronized to one of the axis of the plot, but can |
|
also display its own ticks and labels. |
|
|
|
It is allowed to synchronize the scale item with a disabled axis. |
|
In plots with vertical and horizontal scale items, it might be |
|
necessary to remove ticks at the intersections, by overloading |
|
updateScaleDiv(). |
|
|
|
The scale might be at a specific position (f.e 0.0) or it might be |
|
aligned to a canvas border. |
|
|
|
\par Example |
|
The following example shows how to replace the left axis, by a scale item |
|
at the x position 0.0. |
|
\verbatim |
|
QwtPlotScaleItem *scaleItem = |
|
new QwtPlotScaleItem(QwtScaleDraw::RightScale, 0.0); |
|
scaleItem->setFont(plot->axisWidget(QwtPlot::yLeft)->font()); |
|
scaleItem->attach(plot); |
|
|
|
plot->enableAxis(QwtPlot::yLeft, false); |
|
\endverbatim |
|
*/ |
|
|
|
class QWT_EXPORT QwtPlotScaleItem: public QwtPlotItem |
|
{ |
|
public: |
|
explicit QwtPlotScaleItem( |
|
QwtScaleDraw::Alignment = QwtScaleDraw::BottomScale, |
|
const double pos = 0.0); |
|
virtual ~QwtPlotScaleItem(); |
|
|
|
virtual int rtti() const; |
|
|
|
void setScaleDiv(const QwtScaleDiv& ); |
|
const QwtScaleDiv& scaleDiv() const; |
|
|
|
void setScaleDivFromAxis(bool on); |
|
bool isScaleDivFromAxis() const; |
|
|
|
#if QT_VERSION < 0x040000 |
|
void setColorGroup(const QColorGroup &); |
|
QColorGroup colorGroup() const; |
|
#else |
|
void setPalette(const QPalette &); |
|
QPalette palette() const; |
|
#endif |
|
|
|
void setFont(const QFont&); |
|
QFont font() const; |
|
|
|
void setScaleDraw(QwtScaleDraw *); |
|
|
|
const QwtScaleDraw *scaleDraw() const; |
|
QwtScaleDraw *scaleDraw(); |
|
|
|
void setPosition(double pos); |
|
double position() const; |
|
|
|
void setBorderDistance(int numPixels); |
|
int borderDistance() const; |
|
|
|
void setAlignment(QwtScaleDraw::Alignment); |
|
|
|
virtual void draw(QPainter *p, |
|
const QwtScaleMap &xMap, const QwtScaleMap &yMap, |
|
const QRect &rect) const; |
|
|
|
virtual void updateScaleDiv(const QwtScaleDiv&, |
|
const QwtScaleDiv&); |
|
|
|
private: |
|
void updateBorders(); |
|
|
|
class PrivateData; |
|
PrivateData *d_data; |
|
}; |
|
|
|
#endif
|
|
|